Yesterday was a long day...  I have been busy repairing my R/C helicopter... It took me 3 weeks just to get the parts in and when I finally got the parts, I couldn't disassemble the machine.  It seems like there is a kind of locking pin in the gears to keep it from falling off during flight but that pin is stuck.

Finally, it took me 3 hours just to get the pin off.  I took another hour to reassemble the helicopter and this morning, I took the helipcopter for a test flight.  When I fired up the motor, the helicopter is shaking werse than an earthquake.  but at least it could take off.  The controls are way off as the helicopter naturally tilt left and forward, making it very hard to maintain a neutral in-flight balance.

Today, I guess I would try to get rid of the vibration problem and hopfully get the helicopter to fly normally again.